CARL ZEISS DIALYT 10x40 B/GAT FERNGLASS BINOCULARS CASED STRAP RUBBER EYECUPS. Here is a pair of 10x40 B DIALYT binoculars in good used condition. Serial number 1623473. They are supplied with leather pouch with rubber protective eyepiece cap and neck strap. They have clean optics. The eyecups can be folded back for spectacle wearers. There is an adjustable Dioptre correction and a central focusing knob. They are the perfect all-rounder, such as for bird watching, to take to the races, or a ball game. This model of binocular does not come up for auction often as they are far superior to the recent VICTORY model. No double vision. Working perfectly.